Home / 21,917,972.16-32,871,640.32-9,131,500.80

Finding the Fourth Proportional to 21,917,972.16, 32,871,640.32 and 9,131,500.80

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Solution

The fourth proportional to 21,917,972.16, 32,871,640.32 and 9,131,500.80 is: 13,695,035.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,917,972.16 : 32,871,640.32 = 9,131,500.80 : x
  2. Step 2: Convert to fraction form
    21,917,972.16/32,871,640.32 = 9,131,500.80/x
  3. Step 3: Cross multiply
    21,917,972.16x = 32,871,640.32 × 9,131,500.80
  4. Step 4: Simplify right side
    21,917,972.16x = 300,167,409,879,392.31
  5. Step 5: Solve for x
    x = 300,167,409,879,392.31/21,917,972.16
  6. Step 6: Final answer
    x = 13,695,035.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.